Home / 20,143,815.20-30,215,722.80-14,085,387.80

Finding the Fourth Proportional to 20,143,815.20, 30,215,722.80 and 14,085,387.80

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Solution

The fourth proportional to 20,143,815.20, 30,215,722.80 and 14,085,387.80 is: 21,128,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,815.20 : 30,215,722.80 = 14,085,387.80 : x
  2. Step 2: Convert to fraction form
    20,143,815.20/30,215,722.80 = 14,085,387.80/x
  3. Step 3: Cross multiply
    20,143,815.20x = 30,215,722.80 × 14,085,387.80
  4. Step 4: Simplify right side
    20,143,815.20x = 425,600,173,295,301.88
  5. Step 5: Solve for x
    x = 425,600,173,295,301.88/20,143,815.20
  6. Step 6: Final answer
    x = 21,128,081.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.